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1. (WO2007003567) GLASS-CERAMICS OF &bgr; -QUARTZ AND/OR &bgr; -SPODUMENE, PRECURSOR GLASSES, ARTICLES MADE FROM SAID GLASS-CERAMICS, PREPARATION OF SAID GLASS-CERAMICS AND ARTICLES
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/003567 International Application No.: PCT/EP2006/063667
Publication Date: 11.01.2007 International Filing Date: 29.06.2006
IPC:
C03C 3/11 (2006.01) ,C03C 10/14 (2006.01)
C CHEMISTRY; METALLURGY
03
GLASS; MINERAL OR SLAG WOOL
C
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
3
Glass compositions
04
containing silica
076
with 40% to 90% silica by weight
11
containing halogen or nitrogen
C CHEMISTRY; METALLURGY
03
GLASS; MINERAL OR SLAG WOOL
C
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
10
Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
14
Silica crystalline phase, e.g. stuffed quartz, cristobalite
Applicants:
EUROKERA [FR/FR]; B.P. 1 F-77640 Jouarre, FR (AllExceptUS)
COMTE, Marie [FR/FR]; FR (UsOnly)
Inventors:
COMTE, Marie; FR
Agent:
LE ROUX, Martine ; c/o Cabinet Beau de Lomenie 158 Rue de l'université F-75340 Paris Cedex 07, FR
Priority Data:
050668630.06.2005FR
Title (EN) GLASS-CERAMICS OF &bgr; -QUARTZ AND/OR &bgr; -SPODUMENE, PRECURSOR GLASSES, ARTICLES MADE FROM SAID GLASS-CERAMICS, PREPARATION OF SAID GLASS-CERAMICS AND ARTICLES
(FR) VITROCERAMIQUES DE $G(B)-QUARTZ ET/OU DE $G(B)-SPODUMENE, VERRES PRECURSEURS, ARTICLES CONSTITUES DE CES VITROCERAMIQUES, ET PREPARATION DE CES VITROCERAMIQUES ET DE CES ARTICLES
Abstract:
(EN) The present invention relates to : - novel glass-ceramics of &bgr;-quartz and/or of &bgr;-spodumene ; - articles made from said novel glass-ceramics ; - lithium alumino-silicate glasses, which are precursors of said novel glass- ceramics ; - methods of preparing said novel glass-ceramics and articles made from said novel glass-ceramics. The present invention relates to the joint use of SnO2 and of Br, as an agent for fining the glass-ceramic glass precursor.
(FR) La présente invention concerne de nouvelles vitrocéramiques de $g(b)-quartz et/ou de $g(b)-spodumène, des articles constitués de ces nouvelles vitrocéramiques, des verres d'aluminosilicate de lithium, qui sont des précurseurs de ces nouvelles vitrocéramiques, ainsi que des procédés de préparation de ces nouvelles vitrocéramiques et des articles constitués de ces vitrocéramiques. La présente invention concerne l'utilisation conjointe de SnO2 et de Br comme agent pour l'affinage du verre précurseur de vitrocéramique.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
KR1020080030639EP1901999JP2009500283CN101213151FR2887871